Manual Dimplex LAK 14IMR (page 38 of 100) (English, German, French)

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EN-12 452162.66.09a · FD 0108 www.glendimplex.de

English LAK 3IMR - LAK 14ITR

7.2.2 Indoor unit

Two supply cables must be connected to the indoor unit: The

power supply to the heat pump and the control voltage for the

integrated heat pump manager (see Appendix Cap. 3.5 on pag.

XV). (Load: 3~; 1x 5-core; control: 1~; 1x three-core) The VDE di-

rectives and regulations and local conditions must be taken into

account in the design and installation of the cables.

For LAK 3IMR, LAK 6IMR, LAK 9IMR

On these heat pumps, the power supply can be provided by

load distribution using two separate supply cables (2x 1~/N/PE;

230 VAC; 50 Hz). Otherwise, the power supply is always pro-

vided using one cable (3~/N/PE; 400 VAC; 50 Hz).

For LAK 14IMR

On this heat pump, the power supply can only be provided by

load distribution using two separate supply cables (2x 1~/N/PE;

230 VAC; 50 Hz). A power supply using a single cable is not per-

mitted

For LAK 14ITR

On this heat pump, the power supply can be provided by load

distribution using two separate supply cables (2x 3~/N/PE; 400

VAC; 50 Hz). Otherwise, the power supply is always provided

using one cable (3~/N/PE; 400 VAC; 50 Hz).

NOTE

ºººº

The positions of the copper link cables in the terminals for the

power supply must be complied with. The copper links may

need to be correctly connected, contrary to the factory

default configuration (see Cap. 3.2 on page XII, Cap. 3.5 on

page XV, or Cap. 3.8 on page XVIII).

The supply cable for the output section of the heat pump (up to

5-core) is fed from the electricity meter of the heat pump via

the utility blocking contactor (if required) into the heat pump

(see heat pump operating instructions for supply voltage). An

all-pole disconnecting device with a contact gap of at least 3

mm (e.g. utility blocking contactor or power contactor) and an

all-pole circuit breaker with common tripping for all external

conductors must be installed in the power supply for the heat

pump (tripping current and characteristic in compliance with

the device information). The connection takes place on X1.

The supply cable (1~L/N/PE~230 V, 50 Hz) for the heat pump

manager must have a continuous voltage. For this reason, it

should be tapped upstream from the utility blocking contactor

or be connected to the household current, because otherwise

important protection functions could be lost during a utility

block. The correct control voltage must be ensured according

to the general information leaflet/rating plate. The connection

takes place on X2.

The utility blocking contactor (K22) with 3 main contacts (1/3/

5 // 2/4/6) and an auxiliary contact (NO contact 13/14) should

be dimensioned according to the heat pump output and must

be supplied by the customer. The NO contact of the utility

blocking contactor (13/14) is looped from terminal strip X3/

GND to connector terminal N1-J7/DI3. CAUTION! Extra-low

voltage!

For detailed instructions on how to connect the external com-

ponents as well as how the heat pump manager functions,

please refer to the device connection diagram and the operat-

ing instructions supplied with the heat pump manager.

The 2nd heat generator is connected with a 6 kW heat output in

factory default. To reduce the output to 4 kW or 2 kW, one or

both of the two copper link cables must be removed from ter-

minal X7 (see circuit diagram).

For detailed information, see circuit diagrams in the attach-

ment.

The electric cables can be fed into the unit from below (in the

refrigeration connection area).

7.3 Final work

Once the pipes and electric cables have been connected, the

pipes must be bent and a number of tests carried out. The leak

test must be carried out with particular care, as a refrigerant

leak results in a direct reduction in output.

Leaks are also difficult to identify once the installation is com-

plete.

7.3.1 Pipe bends

Bend the pipe by covering the connection cable and refrigerant

pipe (between the indoor and outdoor unit) with insulation and

fix the insulation in place with two adhesive tapes.

1) Fix the refrigerant pipe, mains cable and connection cable

with adhesive tape from bottom to top. Fix the bound pipe-

work along the wall.

2) Form a siphon to prevent water from entering the chamber

and electrical components.

3) Fix the pipework to the wall using clamps or similar.

Wrap the pipework in adhesive tape

1) Fix the pipes, mains cable and connection cable with adhe-

sive tape from bottom to top. If they are fixed from top to

bottom, rain could enter into the pipes or cables.

2) Fix the bound pipework along the external wall with clamps

or similar.

3) A siphon prevents water from entering the electrics.

Drain hose

(not used)

Adhesive tape

(narrow)

Pipe

Wrapped in

adhesive tape

(wide)

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Dimplex LAK 14IMR Manual

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